What powers 
club-jbs.jp?
Last seen Sep 2026 · 18 technologies across 12 categories
CDN
CMS
Databases
Font scripts
Hosting
JavaScript frameworks
JavaScript libraries
Miscellaneous
Performance
Programming languages
SEO
Web servers
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 67% phone
- 33% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.65 / 10 · ranked #790,404 of all domains
48 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 2.2 MB · 55 requests
- WordPress theme: jbs · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- club JB'S
- Profiles: X
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Xserver (183.90.238.27)
- Email: no MX record returned, SPF names Xserver
- Email security: SPF (soft fail)
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 10,013,927, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| club-jbs.jp | 18 |
| www.club-jbs.jp | 16 |
Full technology history →
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Recent changes
- detected Twitter Emoji (Twemoji) Dec 2025